CG modeler Michael Berger's idea of a girl who controls the Moon was chosen, and Selick was hired to develop the short.
[1] Selick brought on They Might Be Giants to do the score after connecting with them through Courtney Booker, who worked on the music video for "Bastard Wants to Hit Me".
[2] In May 2004, Laika president Travis Knight's brother, Matthew, died suddenly, and the film was dedicated to his memory.
[3][4] The film was also shown with October 2005 screenings of Selick's previous work The Nightmare Before Christmas at El Capitan Theatre.
[5] The film was adapted into a picture book which was written by Selick and illustrated by Peter Chan and Courtney Booker.